#include<stdio.h>
#define NUM 10
int i[NUM];
main()
{
    int sum,n,total,k,flag,count=0;
    printf("Please enter requried terms (<=10):");
    scanf("%d",&n);
    printf("         their sum:");
    scanf("%d",&total);
    sum=0;
    k=n;
    i[n]=1;
    printf("There are following possible series:\n");
    while(1)
    {
        if(sum+i[k]<total)
        if(k<=1)
        {i[1]=total-sum;flag=1;}
        else 
        {
            sum+=i[k--];
            i[k]=i[k+1];
            continue;
        }
        else if(sum+i[k]>total || k!= 1)
        {sum-=i[++k];flag=0;}
        else flag=1;
        if(flag)
        {
            printf("[%d]:",++count);
            for(flag-1;flag<=n;++flag)
            printf("%d",i[flag]);
            printf("\n");
        }
        if(++k>n)
        break;
        sum-=i[k];
        i[k]++;
    }
}